How much does a 1.50 to 1.99ct I VVS1 lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct I VVS1 lab grown radiant diamonds typically cost £224 GBP to £1,202 GBP, with a median price of £324 GBP. There are currently 4 diamonds matching this specification available across retailers.

Where can I find the best price on a I VVS1 radiant diamond?

About 11% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VVS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 4 lab grown radiant diamonds with I colour and VVS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £224 GBP to £1,202 GBP, with a median of £324 GBP. At least 30 retailers stock this exact specification, and 11% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between £336 GBP and £819 GBP per carat. The same specification in natural form lists at a median of about £4,437 GBP per carat. Over the last 30 days the median price moved +5.0% and the number of listings moved +17.5%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Radiant lab grown stones in the index: 474 USD per carat, -2.1% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

£167 GBP

Highest Price

£1,990 GBP

Average Price

£582 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

10.6%

Price Spread

68.4%

30-Day Price Trend

+5.0%

30-Day Supply Change

+17.5%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$941/ct

10th Percentile

$341

Median

$941

90th Percentile

$1,210

Score Distribution

12 diamonds scored across 4 quality tiers

Excellent

3 (25.0%)

Very Good

2 (16.7%)

Good

2 (16.7%)

Average

5 (41.7%)

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1